Questions in Grade College

Questions in Grade College

[Terjawab] What is $x^2+21 x+110$ in factored form?

[Terjawab] In 1980, Lech Walesa led a worker's strike in A. Hungary B. Poland C. Czechoslovakia D. Yugoslavia

[Terjawab] The table below gives the numbers of protons, electrons, and neutrons in four atoms. | Atom | Number of protons | Number of neutrons | Number of electrons | |---|---|---|---| | 1 | 9 | 8 | 9 | | 2 | 9 | 9 | 8 | | 3 | 9 | 9 | 10 | | 4 | 9 | 10 | 9 | Based on the table, which atom has a charge of -1?

[Terjawab] What is the best order of sentences? A. $4,2,7,3,1,8,6,5$ B. $6,2,4,1,7,8,3,5$ C. $6,4,1,2,7,8,5,3$ D. $6,4,2,1,7,8,3,5$

[Terjawab] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Terjawab] What is the correlation coefficient for the data shown in the table?

[Terjawab] Solve the system of equations: [tex] \begin{array}{l} y=-2y+6 \ -4y+y=-20 \end{array} [/tex]

[Terjawab] Yes, because the upper limit of the 68.26% interval is less than 8 minutes. (d) How do the percentages of the 100 waiting times in Table 1.9 that actually fall into intervals [$\bar{x} \pm s$], [$\bar{x} \pm 2 s$], and [$\bar{x} \pm 3 s$] compare to those given by the Empirical Rule? Do these comparisons indicate that the statistical inferences you made in parts b and c are reasonably valid? (Round your answers to the nearest whole number.)

[Terjawab] Perform the division. $(60 x^{18}-54 x^{17}+30 x^{16}-18 x^{15}) \div(6 x^{19})$

[Terjawab] Decide which is the correct factored form of [tex]$7 x^2-13 x-2$[/tex]